Nothern Lights NL944D2 User manual

Brand: Nothern Lights

Model: NL944D2

Category: Power generators

Type: User manual

This manual is also suitable for

ONL944

For Models: NL944D2, NL944D3,

NL944T2, and NL944T3

OPERATOR’S MANUAL

Marine Generators | Marine Diesel Engines | Land-Based Generators

MARINE GENERATORS

Diesel engine exhaust and some of its constitu-

ents are known to the State of California to cause

cancer, birth defects, and other reproductive harm.

— CALIFORNIA —

Proposition 65 Warning:

Northern Lights

4420 14th Avenue N.W.

Seattle, WA 98107

Tel: (206) 789-3880

Fax: (206) 782-5455

the Northern Lights logo are trademarks of

Northern Lights, Inc.

Printed in U.S.A.

PART NO.: ONL944 7/13

As of January 2008, U.S. EPA regulations require the

application of a permanently applied label near the fuel tank

ll port for diesel driven equipment. This label is to state:

LOW OR ULTRA LOW SULFUR FUEL ONLY

Northern Lights is providing this label for application to the

fuel inlet of the fuel supply tank for each engine or generator

set. This is to be applied by the installer of the engine or gen

set, or by the manufacturer of the equipment that the engine

or gen set is installed in. The location of the label must be

in clear site of personnel that rell the supply tank.

Note: Starting in 2011, the label will state:

ULTRA LOW SULFUR ONLY.

MARINE GENERATORS

ONL944 7/13

Read this operator's manual thoroughly before starting to operate your equipment.

This manual contains information you will need to run and service your new unit.

Proprietary Information

This publication is the property of Northern Lights, Inc.

It may not be reproduced in whole or in part without the written permission of Northern Lights, Inc.

OPERATOR'S MANUAL

for Northern Lights

NL944D2, NL944D3, NL944T2,

and NL944T3 Diesel Generator Sets

INTRODUCTION ..................................................2

Models Included .................................................2

Model Numbers ..................................................2

Serial Numbers ...................................................2

WARRANTY ...........................................................3

SAFETY RULES ..............................................3 - 7

COMPONENT LOCATIONS

Generator Set ...............................................8 - 9

CONTROL PANELS

Northern Lights Generator Sets ...................... 10

OPERATING PROCEDURES

Break-in Period .................................................11

Before Starting .................................................. 11

Starting ............................................................. 12

Operating ......................................................... 12

Stopping ........................................................... 12

Shutdowns and Alarms .................................... 13

Spare Parts ....................................................... 13

SERVICING SCHEDULE CHART ................. 14

SERVICING

Lubrication - General ....................................... 16

Checking Oil .................................................... 16

Oil Changes ..................................................... 16

Changing Oil Filter .......................................... 17

Air Filter .......................................................... 17

Table of Contents

SERVICING (Continued)

V-Belts ............................................................. 17

Valve Clearances .............................................. 18

Fuels - General ................................................. 19

Fuel Filters ....................................................... 19

Bleeding the Fuel System ................................ 20

Injector Service ................................................ 21

Injection Pump ................................................. 22

Cooling System ............................................... 23

Turbocharger .................................................... 24

Electrical System - General ............................. 25

Booster Batteries .............................................. 25

Battery Care ..................................................... 26

Winterizing / Out-of-Service ........................... 26

TROUBLESHOOTING

Electrical .......................................................... 27

Engine ...................................................... 28 - 30

WIRING DIAGRAMS

AC Electrical ................................................... 31

DC Electrical ........................................... 32 - 35

ONL944 7/13

The servicing of industrial generator sets presents unique

problems. In many cases, these generators are far from

a repair facility. Servicing generator engines cannot be

compared to the servicing of automobiles, trucks, or

even farm equipment. Failures often occur in remote

areas far from competent assistance. Industrial engines

are taxed far more severely than auto or truck engines;

therefore, maintenance schedules must be adhered to

more strictly. Failures begin with minor problems that

are overlooked and become amplied when not corrected

during routine maintenance.

As operator, it is your obligation to learn about your

equipment and its proper maintenance. This is not a

comprehensive technical service manual. Nor will it make

the reader into an expert mechanic. Its aim is to aid you in

maintaining your unit properly.

NL - Northern Lights industrial generator set

Model number of engine block

Bore Cylinders

94 mm 4

MODELS INCLUDED

This manual covers the operating instructions for:

NL944D2, NL944D3, NL944T2, and NL944T3 industrial generator sets, which

use the 944 engine block.

Model Numbers

Model numbers give the unit's application, block model, aspiration, and RPM:

Northern Lights industrial diesel generator set

with a 944 engine and a Stamford UCI224 series

generator end, Tier II.

NL944D2

944

Northern Lights industrial diesel generator set with

a 944 engine and a Stamford UCI224 series

generator end, Tier III.

NL944D3

Introduction

Your set has three serial numbers:

an engine number stamped

on the block,

a generator plate, and

a generator set plate.

Use the serial number on the generator set plate when ordering parts

or in correspondence. The generator set plate is found on the service

side of the generator and resembles the drawing in Figure 1.

Figure 1: Generator set serial number plate.

D - Naturally aspirated

T - Turbocharged

D, T

Northern Lights industrial diesel generator set

with a 944 engine and a Stamford UCI224

series generator end, turbocharged, Tier II.

NL944T2

Northern Lights industrial diesel generator set

with a 944 engine and a Stamford UCI224

series generator end, turbocharged, Tier III.

NL944T3

Unit Identication

Serial Numbers

ONL944 7/13

A warranty registration certicate is supplied with your

set. It entitles the original purchaser of our equipment

to a warranty covering material or assembly faults. The

extent of coverage is described in the Limited Warranty

Statement. We recommend that you study the statement

carefully.

NOTE: If the warranty is to apply, the servicing

instructions outlined in this manual must be followed.

If further information is needed, please contact an

authorized dealer or the factory.

Warranty

CAUTION: Accident reports show that careless use of engines causes a high percentage of accidents.

You can avoid accidents by observing these safety rules. Study these rules carefully and enforce them on the job.

Safety Rules

IMPORTANT SAFETY INSTRUCTIONS.

Electromagnetic equipment, including generator sets

and their accessories, can cause bodily harm and

life threatening injuries when improperly installed,

operated or maintained. To prevent accidents be aware

of potential dangers and act safely.

READ AND FOLLOW ALL SAFETY

INSTRUCTIONS IN THIS MANUAL, PRIOR TO

THE INSTALLATION OF ANY GENERATOR SET

OR ACCESSORY. KEEP THESE INSTRUCTIONS

FOR FUTURE REFERENCE.

Recognize Safety Symbols and

Instructions

In addition to the information found

in this section, this operator’s manual

will use the CAUTION warning to

outline potential dangers of a specic nature.

CAUTION indicates the presence of a potential hazard

that can or will cause severe or minor property damage,

personal injury or death.

Follow All Safety Instructions

Carefully read and

understand all safety

messages in this manual

and on your machine’s

safety signs. Keep

signs in good and clean

condition. Replace

missing or damaged

signs. Be sure new equipment components and

repair parts include the current safety signs. For

replacement signs, proper placement of safety signs

or clarication on any safety issue, consult your

Northern Lights dealer or the factory.

There can be additional safety information contained

on parts and components from outside suppliers

that is not reproduced in this manual. Consult the

suppliers for additional safety information.

Learn how to operate the machine and how to use

the controls properly. Only trained personnel should

operate machines, or work on or around them.

Keep you machine in proper working condition.

UNAUTHORIZED MODIFICATIONS TO THE

MACHINERY MAY IMPAIR ITS FUNCTION

AND SAFETY PARAMETERS.

Prevent Bypass and Accidental Starting

Do not start engine by shorting across start terminal.

Engine will start if normal

circuitry is bypassed, creating a

hazard by runaway machinery.

Start engine only from operator’s

station.

Handle Fuel Safely - Avoid Flames

Diesel is highly ammable and should be treated

with care at all times. Do not refuel while smoking

or when near sparks or open ame.

Revised 7-10-13

ONL944 7/13

Safety Rules

Added 2-1-12

ALWAYS STOP ENGINE BEFORE FUELING

MACHINE. Always ll

portable fuel tank outdoors.

Never fuel a hot engine.

Prevent accidental discharge

of starting uids by storing

all cans in a cool, safe place,

away from sparks or open ame. Store with cap

securely on container. Never incinerate or puncture a

fuel container.

Prevent res by keeping machine clean of accumulated

trash, grease and debris. Always clean any spilled fuel

as swiftly as possible. Do not store oily rags, which

can ignite and burn spontaneously.

Be prepared if a re starts. Keep a rst aid kit and re

extinguisher handy. Keep emergency contact numbers

for re department, doctors, ambulance and hospital

near the telephone.

Service Machines Safely

Do not wear a necktie, scarf,

necklace, rings or other

jewelry, or any loose clothing

when working near moving

parts. Tie long hair behind

your head. If any of these

items get caught in moving

machinery, severe injury or death could result.

Check for any loose electrical connections or faulty

wiring.

Look completely around engine to make sure that

everything is clear before starting.

Wear Protective Clothing

To prevent catching anything in moving machinery,

always wear close tting clothes and safety equipment

appropriate to the

job.

Prolonged exposure

to loud noise can

cause hearing loss

or impairment.

Wear suitable

authorized hearing protection, such as earmus or

plugs to protect against loud noises.

Operating equipment requires the full attention of

the operator. Do not use radio or music headphones

while operating machinery.

Practice Safe Maintenance

Understand all service procedures before starting

work. Keep area clean and dry. Never lubricate,

service, or adjust machine while it is in operation.

Keep hands, feet and

clothing away from

power-driven equipment.

When shutting down

an engine, disengage

all power and operator

controls. Allow the

engine to cool completely before beginning any

service work.

Securely support any machinery elements that must

be raised for service work with support or lifting

machinery specically intended for that purpose.

Keep all parts in good conditions and properly

installed. Fix damage immediately. Replace any

worn or broken parts. Remove any build up of

grease, oil or debris.

Disconnect battery ground cable (-) before making

any adjustments or service work.

Stay Clear of Rotating Drivelines

Entanglement in

rotating drivelines

can cause serious

injury or death.

Keep shields in

place at all times.

Make sure that

rotating shields turn

freely in pace with the drivelines.

Do not wear loose tting equipment around rotating

drivelines. Stop the engine and make sure that

all moving parts have stopped before making any

adjustments, connections, or performing any other type

of service to the engine or other driven equipment.

ONL944 7/13

Safety Rules (Continued)

Added 2-1-12

Install all Safety Guards

Direct contact with rotating fans, belts, pulley and

drives can cause serious injury.

Keep all guards in place at all times during engine

operation.

Wear close-tting clothes.

Stop the engine and be sure all

fans, belts, pulleys and drives

are stopped before making

adjustments, connections, or

cleaning near fans and their

components.

Do not allow anything on your person to dangle into

or come in contact with a moving fan, belt, pulley or

drive. Fans can act as vacuums and pull materials

up from below, so avoid that area as well while in

service.

Safe Battery Handling

Prevent Battery Explosions

Battery gas is highly

ammable. Battery

explosions can cause severe

injury or death. To help

prevent battery explosions,

keep sparks, lighted matches

and open ame away from

the top of battery. When

checking battery electrolyte level, use a ashlight.

Never check battery charge by contacting the posts

with a metal object. Use a volt-meter or hydrometer.

Frozen batteries may explode if charged. Never

charge a battery that has not been allowed to warm to

at least 16

C (60

F).

Always remove grounded (-) battery clamp rst and

replace ground clamp last.

Sulfuric acid in battery electrolyte is poisonous and

strong enough to burn skin, eat holes into clothing

and other materials, and cause blindness if splashed

into eyes.

To Avoid Hazards:

• Fill batteries only in well-ventilated areas.

• Wear appropriate eye protection and rubber gloves.

• Never use air pressure to clean batteries.

• Wear appropriate ventilation equipment to avoid

inhaling fumes when adding electrolyte.

• Do not spill or drip electrolyte.

• Use correct jump-start procedure if required.

If acid is spilled on skin or in eyes:

1. Flush skin with water.

2. Apply baking soda or lime to

help neutralize acid.

3. Flush eyes with water for

15-30 minutes.

4. Get medical attention

immediately.

If acid is swallowed:

1. DO NOT induce vomiting.

2. Drink large amounts of

water or milk, without

exceeding 2 liters

(2 quarts)

3. Get medical attention immediately

WARNING: Battery posts, terminals, and related

accessories can contain lead and lead compounds,

chemicals known to the State of California to cause

cancer and reproductive harm. Wash hands after

handling.

Handle Chemical Products Safely

Direct exposure to hazardous chemicals can cause

serious injury. Among the

potentially hazardous

chemicals that may be used

with Northern Lights

products are lubricants,

coolants, paints and

adhesives.

All potentially hazardous

chemicals come with a Material Data Safety Sheet

(MSDS). The MSDS provides specic details on

chemical products, including physical hazards, safety

procedures and emergency response techniques

Read and understand the MSDS for each chemical before

you start any job that includes it. Follow the procedures

and use appropriate equipment exactly as recommended.

ONL944 7/13

Safety Rules (Continued)

Added 2-1-12

Slowly loosen cap to relieve pressure before opening

fully.

Avoid High Pressure Fluids

Relieve pressure prior to

disconnecting pressurized

lines. Escaping uid

under pressure can

penetrate the skin causing

serious injury. Always

relieve pressure before

disconnecting hydraulic or other pressurized lines.

Tighten all connections rmly before re-applying

pressure.

If searching for leaks, use a piece of cardboard.

Always protect your hands and other body parts

from high-pressure uids.

If an accident occurs, see a doctor immediately. Any

high pressure spray injected into the skin must be

removed within a few hours to prevent the risk of

gangrene or other infection.

Avoid Heating Near Pressurized Fluid Lines

Flammable spray can be

generated by heating near

pressurized uid lines,

resulting in severe burns and

bodily injury. Pressurized

lines can rupture when heat

goes beyond the immediate

ame area. Do not weld,

solder or use a torch or open ame near pressurized

lines or other ammable uids.

Do Not Open High-Pressure Fuel System

Many Northern Lights engines use high-pressure

fuel injection. High-pressure uid remaining in fuel

lines can cause serious injury. Do not disconnect

or attempt any repair of fuel lines, sensors, or other

components between the high-pressure fuel pump

and nozzles on engines with high pressure fuel

systems.

ONLY AUTHORIZED TECHNICIANS CAN

PERFORM REPAIRS ON AN HIGH PRESSURE

FUEL INJECTION SYSTEMS.

Contact your Northern Lights dealer or Northern

Lights factory for MSDS’s used on Northern Lights

products.

Work in Well Ventilated Areas

Exhaust fumes from engines contain carbon

monoxide and can cause sickness or death. Work in

well ventilated areas to avoid prolonged exposure

to engine fumes. If it is necessary to run an engine

in an enclosed area, route the exhaust fumes out of

the area with an approved, leak proof exhaust pipe

extension.

Remove Paint Before Welding or Heating

Hazardous fumes can be generated when paint is

heated by welding, soldering or using a torch. To

avoid potentially toxic fumes and dust, remove paint

before heating.

• Remove paint a

minimum of 100 mm

(4 in.) from the area

that will be aected by

heat.

• If paint cannot be

removed, wear an

approved respirator.

• If you sand or grind

paint, use an approved respirator.

• If you use solvent or paint stripper, remove stripper

with soap and water before welding. Remove

solvent or paint stripper containers from the area.

• Allow at least 15 minutes for fumes to disperse

before welding or heating.

Do not use a chlorinated solvent in an area where

welding will occur. Work only in areas that are well

ventilated. Dispose of paint and solvent properly.

Service Cooling System Safely

Opening a pressurized cooling

system can release explosive

uids and causing serious burns.

Before opening any pressurized

cooling system, make sure the

engine has been shut o. Do

not remove a ller cap unless

is cool enough to comfortably grip with bare hands.

ONL944 7/13

Safety Rules (Continued)

Added 2-1-12

Use Proper Lifting Equipment

and Techniques

Lifting heavy components

incorrectly can cause severe injury

or damage to machinery. Avoid

unbalanced loads. Do not use

lifting eyes. Lift the generator set

using lifting bars inserted through the lifting holes

on the skid. Follow all recommended removal and

installation procedures in this and associated Northern

Lights manuals.

Use Proper Tools

Makeshift tools

and procedures

can create safety

hazards. Always use

appropriate tools for

the job.

Use power tools only to loosen threaded parts and

fasteners. For loosening and tightening hardware,

always use the correct sized tools. Do not use US

measurement tools on metric fasteners, or vice versa.

Use only service parts that meet Northern Lights

specications.

Dispose of Waste Properly

Disposing of waste improperly can threaten the

environment and lead to unsafe working conditions.

Potentially harmful waste used in Northern Lights

equipment can include oil, fuel, coolant, lters and

batteries.

Use leakproof containers to drain uid. Do not

use food or beverage containers that may mislead

someone into drinking from them.

Do not pour waste onto the ground, down a drain or

into any water source.

Avoid Hot Exhaust

Avoid exposure to and physical contact with hot

exhaust gases. Exhaust parts and streams can reach

high temperatures during operation, leading to burns

or other serious injury.

Cleaning exhaust lters can

also lead to exposure to hot

exhaust gas and the injury

risk associated with it. Avoid

exposure to and physical

contact with hot exhaust gases

when cleaning exhaust lters.

During auto or manual/stationary exhaust lter

cleaning operations, the engine will run at

elevated temperatures for an extended period of

time. Exhaust parts and streams can reach high

temperatures during operation, leading to burns or

other serious injury.

Avoid Harmful Asbestos Dust

Inhaling asbestos bers may cause lung cancer.

Avoid breathing any dust that may be generated

when handling

components containing

asbestos bers, including

some gaskets.

The asbestos used in

these components is

usually found in a resin

or otherwise sealed.

Normal handling of these

components is not dangerous, as long as airborne

dust containing asbestos is not generated.

Avoid creating dust. Never use compressed air for

cleaning. Avoid brushing or grinding materials

containing asbestos. When servicing, wear an

approved respirator. A special vacuum cleaner is

recommended to clean asbestos. If this vacuum is

not available, apply a mist of oil or water on the

material containing asbestos. Keep all bystanders

away from any area where asbestos dust may be

generated.

ONL944 7/13

Figure 2 & 3: NL944D3 with UCI224 series generator end.

Industrial Generator Set Component Locations

21. Exhaust Elbow

22. Alternator

23. Oil Pressure Switch & Sender

24. Starter

1. Coolant Fill

2. Fuel Filter

3. Injection Pump

4. Rocker Arm Cover

5. Intake Manifold

6. Oil Fill

7. Air Cleaner Cap

8. Air Cleaner

9. Junction Box

10. Control Panel

11. Control Panel Plug

12. Drain Plug

13. Fuel Return Line

14. Dipstick

15. Fuel Inlet Line

16. Oil Filter

17. Solenoid

18. Oil Pan

19. Fuel Primer Pump

20. Radiator Shroud

2 3

8 21

ONL944 7/13

Industrial Generator Set Component Locations

Figure 4 & 5: NL944T2 with LXE series generator end.

20. Exhaust Elbow

21. Alternator

22. Starter

1. Coolant Fill

2. Fuel Filter

3. Injection Pump

4. Rocker Arm Cover

5. Oil Fill

6. Air Cleaner Cap

7. Air Cleaner

8. Control Panel

9. Junction Box

10. Control Panel Plug

11. Water Drain

12. Dipstick

13. Oil Filter

14. Fuel Return Line

15. Fuel Inlet Line

16. Fuel Primer Pump

17. Oil Pan

18. Radiator Shroud

19. Turbocharger

ONL944 7/13

Control Panels

Figure 6-B: Series 3 Generator Control Panel

Figure 6-A: Series 1-B Generator Control Panel

1. PREHEAT/ SHUTDOWN BYPASS

This switch serves two functions:

1. Preheats air before beginning the starting process.

Press switch for 10-20 seconds before attempting

startup.

2. Bypasses the safety shutdown feature during the

starting process. Keep switch engaged while starting

engine, and for 2 to 3 seconds afterwards, allowing oil

pressure to build beyond shutdown setpoint.

2. ENGINE CONTROL SWITCH

To start the engine, hold this switch in the START

position until the engine is running. After the engine

starts, release the switch and it will return to RUN

position. To stop the engine, hold the switch in the

STOP position.

NOTE: The rocker switch is used on Series 1 panels

only, and has a light that glows when the set is

running.

3. HOUR METER

Keeps track of engine running time.

4. OIL PRESSURE GAUGE

Shows the oil pressure in the engine lubricating system.

5. WATER TEMPERATURE GAUGE

Registers the temperature of the cooling water.

6. D.C. VOLTMETER

When the engine is stopped, the voltmeter indicates the

condition of the battery. When the engine is running,

the voltmeter indicates the voltage output of the

alternator.

ONL944 7/13

Operating Procedures

BEFORE STARTING

1. Check the coolant level by removing the pressure

cap from the radiator. In order to give the cooling

water an opportunity to expand, the level should

be about 1 in. (2.5 cm) below the ller cap sealing

surface when the engine is cold.

CAUTION: Use protective clothing and open

the ller cap carefully when the engine is warm

to prevent burns.

2. Check the oil level in the crankcase with the

dipstick. The oil level must be between high and

low marks on the stick. Never allow the level to go

below this area. Always add the same viscosity of

oil as is already in the crankcase.

3. Check the fuel tank level and open any fuel valves

on the tank and at the secondary fuel lter, if

equipped with one.

4 . Place the battery switch in the ON position.

NOTE: The battery switch must always be kept ON

while the engine is running. If the switch is

turned OFF while the engine is running,

the battery charging alternator could be

damaged.

BREAK-IN PERIOD

1. Your engine is ready to be put into service.

However, the rst 100 hours on a new or

reconditioned engine are critical to its life and

performance. This is especially true of an engine

that runs at a constant speed such as a generator

engine.

2. Operate the engine under various conditions,

particularly heavy loades with minimal idling, to

help seat engine components properly..

3. Oil consumption is greater during break-in as piston

rings take time to seat.

4. Your engine comes equipped with break-in oil.

Change engine oil and lter at 50 hours using API

Service Category CC, CD, or CE break-in oil.

Change the oil and lter again at 100 hours.

(Consult the lubricants section for oil

recommendation.)

5. Frequently check the engine temperature and oil

pressure gauges.

Updated 1-10-13

ONL944 7/13

OPERATING

1. Units with Series 3 Control Panels: check gauges

often. Oil pressure must be above 15 PSI. The D.C.

voltmeter should read between 11 and 15 volts at 80°

F (25° C) ambient temperature. The water

temperature gauge must be below 200° F (94° C).

Check the A.C. voltage. If the gauges deviate from

normal levels, shut down the generator set and

investigate.

2. Let the unit run unloaded for a three to ve minute

warm-up period.

3. Add electrical load.

STOPPING

1. Remove electrical load from the generator set.

2. Run the engine for a three to ve minute cool-down

period.

3. Move the Engine Control switch to the STOP

position until the engine stops completely.

4. Shut o fuel valve and battery switch.

Operating Procedures

STARTING

1. Hold the Shutdown Bypass switch in the ON

position.

2. While holding the Shutdown Bypass switch in the

ON position, push the Engine Control switch to the

START position.

3. As soon as the engine starts, release both switches.

Do not crank the starter for more than 20 seconds

consecutively. If the engine fails to start with the

rst attempt, be sure that it has stopped completely

before re-engaging the starter.

ONL944 7/13

SHUTDOWNS AND ALARMS

1. Your unit is tted with a system to protect it from

high water temperature or low oil pressure.

a. Generator sets have shutdown systems to stop

the engine. They have no warning horns.

b. Other alarms and shutdowns are available as

optional equipment.

NOTE: If your unit is equipped with optional

shutdowns and alarms, do not rely on your

warning or shutdown system to the exclusion

of careful gauge monitoring. Watching your

gauges can prevent damage to the unit and

dangerous power losses.

2. Do the following when your warning or shutdown

system is activated:

a. Check the temperature gauge. If above 205° F

(96° C), shut o the engine immediately.

b. Use the Trouble Shooting Guide on page 25 to

isolate the cause of the overheat.

CAUTION: Do not remove the water ll

cap of an overheated engine. Escaping high

temperature steam can cause severe burns. Allow

the engine to cool and then remove the cap slowly

using protective clothing.

c. Make repairs and restart after the temperature

gauge registers below 200° F (94° C).

d. Watch the temperature gauge regularly and

turn o the unit if the temperature rises above

205° F (96° C). Repeat troubleshooting.

3. If shutdown is activated and the temperature gauge

shows temperature within normal temperature range:

a. Check the engine crankcase oil level.

b. If the oil level is low, ll with recommended

lubricating oil and restart. Watch the oil pressure

gauge carefully and shut o the engine if it does

not show a normal reading (20-60 PSI) after a

few seconds of operation.

c. If the oil level is normal, DO NOT restart the

engine. Call your dealer for assistance.

Operating Procedures

SPARE PARTS

1. ADE recommends that you keep the following spare

parts on hand for eld service. The parts are

available from your local Northern Lights dealer.

a. Primary and secondary fuel lter elements

b. Oil lters

c. Air lter elements

d. Alternator belt

e. Thermostat and gaskets

f. Glow plugs

g. Injector and washer

2. If your set is operating a long distance from a

servicing dealer, add the following:

a. Complete set of injectors

b. Copper washers for injector change

c. Complete set of glow plugs

d. Fuel lift pump

ONL944 7/13

The Servicing Schedule Chart below shows the service schedule required for proper maintenance of your generator set.

More detailed coverage of each Service Point (SP) is listed on the page noted in the ‘page’ column.

DAILY:

SP1 Check oil level in engine

SP8 Check primary fuel lter

SP14 Check cooling water level

AFTER FIRST 50 HOURS:

SP2/3 Change engine oil and lter

SP5 Check V-belt tension

SP7 Adjust valves

SP19 Check electrolyte level in batteries

EVERY 50 HOURS:

SP5 Check V-belt tension

SP19 Check electrolyte level in batteries

AFTER FIRST 100 HOURS:

SP2/3 Change engine oil and lter

EVERY 100 HOURS:

SP21 Check air, oil, and coolant lines for leaks near turbo

EVERY 250 HOURS:

SP2/3 Change engine oil and lter

SP4 Check air cleaner

EVERY 500 HOURS:

SP6 Check valve clearances

SP9 Change primary fuel lter element

SP10 Change secondary fuel lter

SP12 Check injectors

SP15 Check cooling system

SP20 Check state of charge of batteries

EVERY 2000 HOURS or as needed:

SP13 Check fuel injection pump

SP16 Check and clean radiator

SP24 Inspect starter and alternator

Servicing Schedule Chart

SERVICE 50 100 250 500 2000

POINT PAGE OPERATION DAILY Hours Hours Hours Hours Hours

ENGINE:

SP1 12 Check oil level •

SP2 12 Change engine oil 1) 5) • •

SP3 13 Change lube oil lters 1) 5) • •

SP4 13 Check air cleaner 1) 4) •

SP5 13 Check V-belt tension

1) •

SP7 14 Check valve clearances 5) •

FUEL SYSTEM:

SP8 15 Check primary lter 2) •

SP9 15 Change primary lter element

2) 3)

•

SP10 15 Change secondary fuel lter 1) 3) •

SP11 16 Bleed the fuel system 3)

SP12 17 Check injectors

1) 7)

•

SP13 18 Check fuel injection pump •

TURBOCHARGER:

SP21 20 Check air, oil, & coolant lines for leakage 3) •

COOLING SYSTEM:

SP14 19 Check cooling water level •

SP15 19 Check and ush cooling system

8) •

SP16 20 Check and clean radiator 4) •

ELECTRICAL SYSTEM:

SP19 22 Check electrolyte level in batteries 1) 4) •

SP20 22 Check condition of batteries with hydrometer

1) •

SP24 Inspect alternator and starter 3)

OUT OF SERVICE:

SP23 22 Winterizing or out-of-service 3)

1) Perform all maintenance once a year even if hour level has not been

reached.

2) Consult manufacturer's maintenance schedule, note on chart.

3) Whenever necessary.

4) More often if necessary.

5) After rst 50 hours.

6) Adjust at rst 100 hours.

7) Fuel inj. opening pressure: 11.77 MPa (120 kgf/cm

) 1710 PSI

8) Or every 1 year

ONL944 7/13

Service Record Notes:

ONL944 7/13

LUBRICATION - GENERAL

1. Use only clean, high quality lubricants

stored in clean containers in a protected area.

2. These lubricants are acceptable:

a. API Service CD, CE, and CF-4 single viscosity

oils.

b. API Service CD, CE, and CF-4 multi-viscosity oils.

3. Use the proper weight oil for your average

operation temperature.

Air Single Multi-

Temperature Viscosity Viscosity

Above 32° F SAE 30W SAE 15-40W

(0° C)

-10° to 32° F SAE 10W SAE 10-30W

(-23° to 0° C)

Figure 7: Lube Oils

4. Never put additives or ushing oil in crankcase.

SP1. CHECKING OIL LEVEL

1. While the engine is stopped, check the oil

level in the crankcase with the dipstick daily.

The oil level must be between the high and low

marks on the stick. Fill with the recommended

oil, and ll only to the high mark on the dipstick.

Follow the lubrication recommendations in

Figure 7.

SP2. OIL CHANGES

1. The set is delivered with special break-in

oil. Change the engine oil and oil lter after

50 hours of operation. Use Service CC30

weight oil during the rst 100 hours.

2. Change the oil and lter again at 100 hours

using the oil recommended in the above

diagram. After this, change oil and lter

every 250 hours.

3. During intermittent cold weather operation,

change oil every 100 hours or six weeks,

whichever comes rst.

4. Change oil at any seasonal change in

temperature when a new viscosity of oil

is required.

5. Change oil when engine is warm but not

hot.

6. Dispose of waste oil in an approved manner.

7. Never use a ushing oil.

8. Loosen clamp on oil change tube. Remove

cap. Drain oil. Replace cap and tube.

9. Rell engine with recommended oil.

10. Engine capacity with new oil lter is:

Model NL944D2, D3, T2, T3......10.5 qts.

(10 liters)

Servicing

ONL944 7/13

SP3. CHANGING LUBE OIL FILTER

1. Change the lube oil lter every 250 hours.

2. Use a lter wrench to remove old lter. Dispose of

lter in approved manner.

3. Make sure the gasket from the old lter is

removed and discarded. Clean mount face.

4. Spread a thin lm of engine oil on the rubber

gasket on the new lter and screw it on nipple

until gasket meets the sealing surface.

5. Using hands only – no wrench – tighten lter

one-half turn farther. Overtightening can do

damage to lter housing.

6. Fill engine with recommended oil. Start engine

and check for leakage. Stop engine, wait 3 minutes,

and check oil level. Add additional oil if necessary.

7. Oil lter part number is:

Models NL944D2, D3, T2, & T3..........#24-01201

SP4. AIR CLEANER

1. Visually inspect air cleaner every 250 hours. In

dusty conditions, check more often.

2. Remove the plate on the bottom of the air intake

manifold. Remove and inspect the foam element.

If dirty, wash element in soapy water. Rinse and

dry thoroughly before reinstalling.

Note: Make absolutely sure no impurities enter

the engine while changing the element, and

do not run the engine with the air cleaner

removed.

  Donotcleanthelterwithdieselfuel,

solvent, or gasoline. Serious engine damage

can result.

SP5. V-BELTS

1. Check the tension and wear on the V-belt after

every 50 hours.

2. Use your thumb to press on the belt at the

midpoint between the crankshaft and alternator

pulleys. The tension is correct if the belt can be

depressed about .39 to .47 in. (10 - 12 mm) with

22 lbs. (10 kg) force.

Servicing

ONL944 7/13

Servicing

SP7. VALVE CLEARANCES

1. Readjust valve clearance after rst 50 hours of

operation. Check valves every 500 hours thereafter.

2. Check the valves when the engine is cold.

3. Rotate the crankshaft in a clockwise direction in the

front 180

to bring each piston to the top dead center

on the compression stroke. Top dead center (TDC) is

when notch on the pulley aligns with the pointer and

the two valves on cylinder No. 1“rock”. Rocking is

when the rocker arms (for the two valves on a given

cylinder) are moving in opposite directions, one up

closing the valve and one down opening the other

valve. The moment when the two rocker arms are

exactly aligned with each other is when they “rock”.

Figure 8: Timing Mark

4. Measure the valve clearance for each of the valves,

with a feeler gauge, in the ring order (1-3-4-2).

Standard valve clearances for a cold engine are:

Intake (IN)........................0.0098 in. (0.25 mm)

Exhaust (EX)....................0.0098 in. (0.25 mm)

5. To adjust valve clearance, loosen the lock nut on the

adjustment screw. Insert a feeler gauge between the

rocker arm and the valve stem cap. Adjust, while

measuring the clearance, until the feeler gauge slides

with a slight drag. Tighten the lock nut and recheck

the clearance (Figure 9).

Figure 9: Valve Adjustment

6. Adjust the remaining valves.

7. Replace the rocker arm cover.

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Nothern Lights NL944D2 User manual

Brand: Nothern Lights

Model: NL944D2

Category: Power generators

Type: User manual

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